Home / 179,971.20-269,956.80-144,979.20

Finding the Fourth Proportional to 179,971.20, 269,956.80 and 144,979.20

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Solution

The fourth proportional to 179,971.20, 269,956.80 and 144,979.20 is: 217,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,971.20 : 269,956.80 = 144,979.20 : x
  2. Step 2: Convert to fraction form
    179,971.20/269,956.80 = 144,979.20/x
  3. Step 3: Cross multiply
    179,971.20x = 269,956.80 × 144,979.20
  4. Step 4: Simplify right side
    179,971.20x = 39,138,120,898.56
  5. Step 5: Solve for x
    x = 39,138,120,898.56/179,971.20
  6. Step 6: Final answer
    x = 217,468.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.